<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 上面部分 -->
      <el-row :gutter="20">
        <!-- 搜索框 -->
        <el-col :span="8">
          <el-input placeholder="请输入内容"  v-model="queryInfo.query" clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <!-- 添加商品按钮 -->
        <el-col :span="4">
          <el-button type="primary"  @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- 中间表格 -->
      <el-table :data="goodslist" border stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="95px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="140px">
          <template slot-scope="scope">
              {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="125px">
          <template slot-scope="scope">
            <!-- 编辑 -->
            <el-button size="mini" type="primary" icon="el-icon-edit"></el-button>
            <!-- 删除 -->
            <el-button size="mini" type="danger" icon="el-icon-delete" @click="removeGoods(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>
    </el-card>
    <!-- 分页区域 -->
    <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 3, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 商品列表
      goodslist: [],
      // 总数据条数
      total: 0,
      // 查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      }
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.console.error('获取参数失败')
      }
      this.$message.success('获取商品列表成功')
      this.total = res.data.total
      this.goodslist = res.data.goods
    },
    // 页码值发生变化触发
    handleCurrentChange(newNum) {
      this.queryInfo.pagenum = newNum
      this.getGoodsList()
    },
    // 每页展示条数发生变化触发
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    // 根据id删除商品信息数据
    async removeGoods(id) {
      const confirmResult = await this.$confirm(
        '请问是否要删除该商品',
        '删除提示',
        {
          confirmButtonText: '确认删除',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已经取消删除')
      }
      const { data: res } = await this.$http.delete('goods/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除商品失败')
      }
      this.$message.success('删除商品成功')
      this.getGoodsList()
    },
    goAddpage() {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style lang="less" scoped>
</style>
